Protection mechanism for looms.



J. NORTHROP. y PROTECTION MBGHANISM FOB. LOOMS.

- APPLIOATION FILED DEo.1al,'19o8.

Patented Feb. 2, 1909.

vWI Messes UNITED sTATns ,n'rnNT canton.

NO RTHBOP, OF HOPEDALE, MASSACHUSETTS,"ASSIGNOR TO F. DRAPERVQOF Hersenen, 'inkssflicnnsn'rns Application filed December 16, 1903... Serial No. eSL'MB.

To allg/whom "it may concern: l f

13e 1t known that LJoNAs Nonrnnor, 'ay cltlzen `ol" the United States, residing at Hopedale, inf the 'county of Worcester .andfState of 'Massachusetta have'invented an Improvement in Protection Mechanisms for" Looms, of which the following ldescription, 1n connection with the accom anying drawy raised and-lowered on movement.

ln a prior a plicationled by me, Ser,` N v 421,208,1l/Iarc 14, 1908-, there is shown, def

vscribed and claimed a protection mechanism andmeans for-holding said mechanisrninind operative' Apositim duringr` the entire'lay 4 f f erly'byoxed. #Thelpresent acterized generally by similar action; its ,ob-

movement Y when f the 'shuttle is f'properly boxed, and 'movable into' operativefposition only-when a shuttle fails to be crisi-:impropinvention is charjectbeing to rovide mechanism oi thisgeneral nature-'w ich will be readily applicable to ordinary looms now in use.

In the drawings 2Figure 1 'is a side elevation, showing suilcient portions'of a-loom to `makeclear the association ofythe resent inverition4 therewith, the lay and s 'uttleboni being-shown in section; Fig. 2 is a plan `view fof vone end of the lay anditsshuttleb'ox and some `'adjacent parts, a shuttle being `shown' y as properly boxed; llig.v 3 is a section'on ther line 3 -3, Fig. '2, showing the adjustable pivigl a detached 'ncctedto the daggerify x-I- .l .l

The loom frame "A, the lay 1 the 'frontboX-L 5()l "''shuttle-boni; the shipper -,fknock-ol lever 6, and the mainkportiondf the frog '7- maybe` of any usual or otal'mounting of a shuttle binder; andFi-g. 11 erspective Vdetail showing a form of shoe a apted to be detachably con.

plate 2,'cover-p`late 3,3-a`nd back-Wall 4 'of the esired`c onstrnction;,g-- i Referring tov Figs. 2 and 3, thelay beam 1 has extendmg therethrough thefbolt Shaving spcineat'ipn or Leteerseatent,

.- -From the construction thus far described.

that upon binder-14, may bev-aj-ustedxito ig-ary -the binder action .upon ythe Vsl11uttlefand 'it bnt. Ithat said binder spring 'may linger 27 the up vapproved manner, Aas

which is indicated -by Fig; Ll,y wherein the Y undue risingmovement of the dagger? 'l recreacion"amerikanen?nonnomas.

' .resented nab. aisee.,

a head 9 preferably bearing on the/top plate 3, and screw threaded at its o psite' end to" engage a nut 10,whereby the olt 8 may'act as a holding'meansfor said'top plate at its outer end, as indicated by Figs. Zand 3: In-

terposed between the top plate 3 and the top of the lay beam is a sleeve 11 having projecting therefrom a bracket 1-2, said sleeve-being formed withv ano ening 13'larger thany the bolt and referab yel'ongated, as shown-by `Fig.` 2. ivotallymounted upon the sleeve 11 lathe shuttle binder-lll'wlnch isnormally- 1 pressed towards the 'shuttle-box 'by meansof ayspringyone end-'of Whichis seated against the binder at 16,an'd .the 'other end of which 1s supported by a bearing'headl' iormedonor carried bya'n adjusting sc rew18having a threaded-l engagement with a 4lug 19 onthe bracket 12 "and locked in adjusted Iposition it will be apparent to one skilledvin the art oosening the nut-10 the bracket 12, and'perforce the ivota-l-point of the likewise be evident, since lthe bracket -121car-f ries thefbinder sprin 15,'that such adjust-y ment-'docs notof itself chan e the 'tensioned or 'adjusted condition ofthe inder 'spring 1.5,

@"SQP* rately and independentlyA adjusted suitf 4conditions of use regardless of adjustment 'of Athe binde-r fuler'um. f l

Mounted in suitable brackets 21, carried by thelay 1 is' the dagger rod 22, Fi As. 1 and 2., having 'a dagger 237 .and norma] y undef-.1.

the iniluenceof aspiring 24 tending to trn `the dagger end downward or into'` operative positionnto en age the shoulder 25 on the frog 7 as'the ay moves'vi'orward to .fbeat 'uplL lProjecting from the dagger rod 22fis anarnr 26v having clamped thereto a binder t er -endofl which`normally `rests against th y inder 121, -as-will be clearly yap 'arent from-the described-structure'. y

- ecured to the dagger :in-'any' desiredeolri n lbythe bolt and vnut 28,

is a shoe 29, .the vpreferred ,detail character of shoe is provid'edfwith an! opening 301,?a'dapt'ed to receivej the .dagger 23, andan upwardl extending stopl, adapted to contact wit the lower aportionofthe laybeam to prevent yco llos

.j' The 110 shoe 29 has an opening 32 through which the bolt passes for securing the shoe to the dagger, the head of the bolt being preferab countersunk, as indicated in 1. Qbviously the form and general character et the shoe 29 and its manner ofv attachine` te the 'dagger may be greatly varied within tne true scope of the present invention, as defined in the claims.

The frog 7 .is provided with a riser 33 and a' dwell or support 34, similar in character to like arts described in my prior application to'w ich reference is made, and the said shoe frbm the dwell or support 34, a shuttle having been properly boxed, the binder will hold 'the Enger 2.7 and consequently maintain the dagger in its raised or ino erative position.

' "If, however, the shuttle fa1ls to be or is im- .properly boxed, the binder will not be moved outward sufliciently to hold the finger 27 and the dagger in its inoperative position, so that the dagger will respond to the demands of its spring and move downward into position to meet the shoulder 25 oi' the frog on the forward movement of the lay. and stop the machine. Thus,` when the loom is working under normal conditions I and the shuttle is properly boxed on each pick, the daggeris maintained'in substantiaily fixed inoperative position and has no effective movement towards operative position, such movement to operative position occurring only when a shuttle fails to be or is im roperly boxed.

t is to be noted that in the construction above described the finger 27 extends into the path of movement of the binder, so that when the latter is moved outward by a propacts with the binder preferably at that end erl boxed shuttle, it finds the finger 27 and ho ds it and consequently the connected dagger from movement responsive to the sprin 24 or other actuating means; and it will l1 ewise be noted that'the finger 27 coportion remote from its pivotal connection with the la Z although in some forms vsf this be evident, the pivotal mounting oriulcrum of the binder may be adjusted in the manner hereinbefore described, without materially affecting the operative relation of the binder and parts co-acting therewith to stop the loom under the conditions described.

` What is claimed is: 1. In a loom, the combination of a lay, a der carried by the lay, a shuttle binder, a

cinica finger connected to the dagger and extending into the ath of moyement of the binder as it is move by a shuttle, and means including said binder and finger acting, when the shuttle is properly boxed to maintain the dagger in iixed inoN e posit ion during the entire lay movemem..

2. In a loom, protection .mechanism including a dagger and means for normally holding said dagger from movement towards operative position during the entire cycle of lay movement, said means including a binder and a finger extending into the path oi movement of the binder as it is moved by a shuttle, said means acting to ermit operative positioning of' the dagger w en the shuttle fails to properly box.

3. in a loom, 'protection mechanism includin 4a dagger, means acting normally to move t ie da ger to operativeposition to sto the loom, a suttle binder, a nger connecte to the dagger and extending into the path of movement oi Athe binder as it is moved by a properly boxing shuttle, and means including said binder and iinger to hold the dagger from' movement towards operative position throughout the cycle of lay movement when vthe shuttle is properly boxed.

4. In a loom, protection mechanism including a dagger, and means for normally holding said dagger from movement towards operative posltion throughout the cycle of lay movement when the shuttle is properly boxed, said means including a )ivotally mounted binder and a finger exten in T into the path of movement of the inner end portion of the binder as it is moved by a shuttle.

5. In a loom, the combination of a lay and its shuttle-box, a dag er carried by the lay, an adjustably mounted binder, abinder finger connected to the dagger and positioned in the path of and to be met by the binder as it is moved by a properly boxing shuttle, and means including said binder and iinger to maintain the dagger in inoperative position throughout the cycle of lay movement when the shuttle is properly boxed.

6. In a loom, a lay, protection mechanism including a dagger, a frog havinff riser and dwell portions, anda shoe on said dagger having a stop to contact with the lay when the dagger is unduly raised.

7. In a loom, a lay, a dagger carried thereby, a frog having dwell and riser portions, a shoe on said dag er having a stop to contact with the lay an prevent excessive upward movement lof the dagger, a shuttle-binder, and a finger connected to the dagger and extending lnto the path of movement of the binder as the latter is -moved by a properly boxin shuttle.

8. n a loom, a lay and its shuttle-box, a binder, a bracket, a s ring interposed be'- tween the bracket and inder, a dagger and connected finger to coperate with the binder,

and means to simultaneously adjust the end of the shuttle-box, a finger connected to binder and bracket, the relation of the binder the dagger and positioned in the fpath of andf and nger remaining undisturbed by lsaid adto be: met by the mner ortion o the binder justment. as the latter is moved y a properly boxing 20 5 9. In a loom, a `lay and its shuttle-box, a shuttle, and means including said binder and. bmder, a bracket,f a' s ring interposed be finger toy maintain the dagger from movetween the bracket and i inder, a dagger and ment towards operative position during the connected n er to coperate with the binder, entire cycle of lay movement Wlen the shutmeans norma ly tending to move the inger tle is properly boxed, f y

i@ towards the binder,and means to simultane- -In testlmony whereof, I have signed my ously adjust the binder and bracket While name to this specification, in the presence of maintaining the undisturbed relation of the two `subscribing Witnesses.

binder and finger. JONAS N ORTHROP. o 10. In a loom, a lay and its shuttle-box, Witnesses:

15 lrotection mechanismjncluding a dagger, a WENDELL WILLIAMS,

` binder pivotally mounted adjacent the outer l EvERETT S. WooD. 

